Struct tracing_subscriber::fmt::writer::Tee

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pub struct Tee<A, B> { /* private fields */ }

Expand description

Combines two types implementing MakeWriter (or std::io::Write) to produce a writer that writes to both MakeWriter’s returned writers.

This is returned by the MakeWriterExt::and method. See the method documentation for details.

Implementations

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impl<A, B> Tee<A, B>

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pub fn new(a: A, b: B) -> Self

Combines two types implementing MakeWriter, returning a new MakeWriter that produces [writers] that write to both outputs.

See the documentation for MakeWriterExt::and for details.

Trait Implementations

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impl<A: Clone, B: Clone> Clone for Tee<A, B>

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fn clone(&self) -> Tee<A, B>ⓘNotable traits for Tee<A, B>`impl<A, B> Write for Tee<A, B> where A: Write, B: Write,`

Returns a copy of the value. Read more

1.0.0 · source

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl<A: Debug, B: Debug> Debug for Tee<A, B>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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impl<A, B> MakeWriter for Tee<A, B> where
A: MakeWriter,
B: MakeWriter,

type Writer = Tee<A::Writer, B::Writer>

The concrete io::Write implementation returned by make_writer. Read more

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fn make_writer(&self) -> Self::Writer

Returns an instance of Writer. Read more

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fn make_writer_for(&self, meta: &Metadata<'_>) -> Self::Writer

Returns a Writer for writing data from the span or event described by the provided Metadata. Read more

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impl<A: PartialEq, B: PartialEq> PartialEq<Tee<A, B>> for Tee<A, B>

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fn eq(&self, other: &Tee<A, B>) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

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fn ne(&self, other: &Tee<A, B>) -> bool

This method tests for !=.

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impl<A, B> Write for Tee<A, B> where
A: Write,
B: Write,

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fn write(&mut self, buf: &[u8 ]) -> Result<usize>

Write a buffer into this writer, returning how many bytes were written. Read more

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fn flush(&mut self) -> Result<()>

Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more

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fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize>

Like write, except that it writes from a slice of buffers. Read more

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fn write_all(&mut self, buf: &[u8 ]) -> Result<()>

Attempts to write an entire buffer into this writer. Read more

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fn write_fmt(&mut self, fmt: Arguments<'_>) -> Result<()>

Writes a formatted string into this writer, returning any error encountered. Read more

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fn is_write_vectored(&self) -> bool

🔬 This is a nightly-only experimental API. (can_vector #69941)

Determines if this Writer has an efficient write_vectored implementation. Read more

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fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>

🔬 This is a nightly-only experimental API. (write_all_vectored #70436)

Attempts to write multiple buffers into this writer. Read more

1.0.0 · source

fn by_ref(&mut self) -> &mut Self

Creates a “by reference” adapter for this instance of Write. Read more

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impl<A, B> StructuralPartialEq for Tee<A, B>

Auto Trait Implementations

impl<A, B> RefUnwindSafe for Tee<A, B> where
A: RefUnwindSafe,
B: RefUnwindSafe,

impl<A, B> Send for Tee<A, B> where
A: Send,
B: Send,

impl<A, B> Sync for Tee<A, B> where
A: Sync,
B: Sync,

impl<A, B> Unpin for Tee<A, B> where
A: Unpin,
B: Unpin,

impl<A, B> UnwindSafe for Tee<A, B> where
A: UnwindSafe,
B: UnwindSafe,

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

pub fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<M> MakeWriterExt for M where
M: MakeWriter,

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fn with_max_level(self, level: Level) -> WithMaxLevel<Self> where
Self: Sized,

Wraps self and returns a MakeWriter that will only write output for events at or below the provided verbosity Level. For instance, Level::TRACE is considered to be _more verbosethanLevel::INFO`. Read more

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fn with_min_level(self, level: Level) -> WithMinLevel<Self> where
Self: Sized,

Wraps self and returns a MakeWriter that will only write output for events at or above the provided verbosity Level. Read more

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fn with_filter<F>(self, filter: F) -> WithFilter<Self, F> where
Self: Sized,
F: Fn(&Metadata<'_>) -> bool,

Wraps self with a predicate that takes a span or event’s Metadata and returns a bool. The returned MakeWriter’s MakeWriter::make_writer_for method will check the predicate to determine if a writer should be produced for a given span or event. Read more

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fn and(self, other: B) -> Tee<Self, B>ⓘNotable traits for Tee<A, B>`impl<A, B> Write for Tee<A, B> where A: Write, B: Write,` where
 Self: Sized,
 B: MakeWriter + Sized,

Combines self with another type implementing MakeWriter, returning a new MakeWriter that produces [writers] that write to both outputs. Read more

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fn or_else<W, B>(self, other: B) -> OrElse<Self, B> where
 Self: MakeWriter<Writer = OptionalWriter<W>> + Sized,
 B: MakeWriter + Sized,
 W: Write,

Combines self with another type implementing MakeWriter, returning a new MakeWriter that calls other’s [make_writer] if self’s make_writer returns OptionalWriter::none. Read more

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impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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pub fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into #41263)

Uses borrowed data to replace owned data, usually by cloning. Read more

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct tracing_subscriber::fmt::writer::Tee

Implementations

impl<A, B> Tee<A, B>

pub fn new(a: A, b: B) -> Self

Trait Implementations

impl<A: Clone, B: Clone> Clone for Tee<A, B>

fn clone(&self) -> Tee<A, B>ⓘNotable traits for Tee<A, B>impl<A, B> Write for Tee<A, B> where A: Write, B: Write,

fn clone_from(&mut self, source: &Self)

impl<A: Debug, B: Debug> Debug for Tee<A, B>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl<A, B> MakeWriter for Tee<A, B> where A: MakeWriter, B: MakeWriter,

type Writer = Tee<A::Writer, B::Writer>

fn make_writer(&self) -> Self::Writer

fn make_writer_for(&self, meta: &Metadata<'_>) -> Self::Writer

impl<A: PartialEq, B: PartialEq> PartialEq<Tee<A, B>> for Tee<A, B>

fn eq(&self, other: &Tee<A, B>) -> bool

fn ne(&self, other: &Tee<A, B>) -> bool

impl<A, B> Write for Tee<A, B> where A: Write, B: Write,

fn write(&mut self, buf: &[u8]) -> Result<usize>

fn flush(&mut self) -> Result<()>

fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize>

fn write_all(&mut self, buf: &[u8]) -> Result<()>

fn write_fmt(&mut self, fmt: Arguments<'_>) -> Result<()>

fn is_write_vectored(&self) -> bool

fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>

fn by_ref(&mut self) -> &mut Self

impl<A: Copy, B: Copy> Copy for Tee<A, B>

impl<A: Eq, B: Eq> Eq for Tee<A, B>

impl<A, B> StructuralEq for Tee<A, B>

impl<A, B> StructuralPartialEq for Tee<A, B>

Auto Trait Implementations

impl<A, B> RefUnwindSafe for Tee<A, B> where A: RefUnwindSafe, B: RefUnwindSafe,

impl<A, B> Send for Tee<A, B> where A: Send, B: Send,

impl<A, B> Sync for Tee<A, B> where A: Sync, B: Sync,

impl<A, B> Unpin for Tee<A, B> where A: Unpin, B: Unpin,

impl<A, B> UnwindSafe for Tee<A, B> where A: UnwindSafe, B: UnwindSafe,

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

fn in_current_span(self) -> Instrumented<Self>

impl<T, U> Into<U> for T where U: From<T>,

pub fn into(self) -> U

impl<M> MakeWriterExt for M where M: MakeWriter,

fn with_max_level(self, level: Level) -> WithMaxLevel<Self> where Self: Sized,

fn with_min_level(self, level: Level) -> WithMinLevel<Self> where Self: Sized,

fn with_filter<F>(self, filter: F) -> WithFilter<Self, F> where Self: Sized, F: Fn(&Metadata<'_>) -> bool,

fn and<B>(self, other: B) -> Tee<Self, B>ⓘNotable traits for Tee<A, B>impl<A, B> Write for Tee<A, B> where A: Write, B: Write, where Self: Sized, B: MakeWriter + Sized,

fn or_else<W, B>(self, other: B) -> OrElse<Self, B> where Self: MakeWriter<Writer = OptionalWriter<W>> + Sized, B: MakeWriter + Sized, W: Write,

impl<T> ToOwned for T where T: Clone,

type Owned = T

pub fn to_owned(&self) -> T

pub fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

fn clone(&self) -> Tee<A, B>ⓘNotable traits for Tee<A, B>`impl<A, B> Write for Tee<A, B> where A: Write, B: Write,`

impl<A, B> MakeWriter for Tee<A, B> where
A: MakeWriter,
B: MakeWriter,

impl<A, B> Write for Tee<A, B> where
A: Write,
B: Write,

fn write(&mut self, buf: &[u8 ]) -> Result<usize>

fn write_all(&mut self, buf: &[u8 ]) -> Result<()>

impl<A, B> RefUnwindSafe for Tee<A, B> where
A: RefUnwindSafe,
B: RefUnwindSafe,

impl<A, B> Send for Tee<A, B> where
A: Send,
B: Send,

impl<A, B> Sync for Tee<A, B> where
A: Sync,
B: Sync,

impl<A, B> Unpin for Tee<A, B> where
A: Unpin,
B: Unpin,

impl<A, B> UnwindSafe for Tee<A, B> where
A: UnwindSafe,
B: UnwindSafe,

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<M> MakeWriterExt for M where
M: MakeWriter,

fn with_max_level(self, level: Level) -> WithMaxLevel<Self> where
Self: Sized,

fn with_min_level(self, level: Level) -> WithMinLevel<Self> where
Self: Sized,

fn with_filter<F>(self, filter: F) -> WithFilter<Self, F> where
Self: Sized,
F: Fn(&Metadata<'_>) -> bool,

fn and<B>(self, other: B) -> Tee<Self, B>ⓘNotable traits for Tee<A, B>`impl<A, B> Write for Tee<A, B> where A: Write, B: Write,` where
Self: Sized,
B: MakeWriter + Sized,

fn or_else<W, B>(self, other: B) -> OrElse<Self, B> where
Self: MakeWriter<Writer = OptionalWriter<W>> + Sized,
B: MakeWriter + Sized,
W: Write,

impl<T> ToOwned for T where
T: Clone,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,